#
When operating two-w ayradios in the
ve hicle, alw ays connect them tothe
lo w- reflection exterior aerial. *
NO
TEInva lidation of the operating per‐
mit due tofailure tocomply wi th the
instructions for ins tallation and use The operating permit may be in
validated if
th e instructions for ins tallation and use of
two-w ayradios are not obser ved. #
Only use appr oved frequency bands. #
Obser vethe maximum permissible out‐
put po wer in these frequency bands. #
Only use appr oved aerial positions. 1
Front roof area
2 Rear roof area
3 Rear wings
4 Boot lid
On vehicles with a panoramic sliding sunroof, fit‐
ting an ae rial to the front or rear roof area is not
permitted. On
there ar wings, it is recommended that you
fi t th e aerial on the side of theve hicle closest to
th e cent reofthero ad.
Use Tech nical Specification ISO/TS 21609 (Road
Ve hicles – "EMCs for ins tallation of af term arket
ra dio frequency transmitting equipment") when
re trofitting two-w ayradios. Comply with the
legal requirements for de tach able parts.
If yo ur vehicle has fittings for two-w ayradio
equipment, use the po wer supp lyand aerial con‐
nec tors prov ided in the pre-ins tallation. Obser ve
th e manufacturer's supplements when fitting.
Tw o-w ayradio transmission output
The maximum transmission output (PEAK) at the
base of the aerial must not exceed theva lues in
th efo llowing table. 348
Tech nical da ta
Fr
equency band and maximum transmission
output Fr
equency band Maximum transmis‐
sion output
Sho rtwa ve
3 - 54 MHz 10
0 W
4 m frequency band
74 - 88 MHz 30 W
2 m frequency band
14 4 - 174 MHz 50 W
Te rrestrial Trunked
Ra dio (TETRA)
380 - 460 MHz 10 W
70 cm frequency
band
420 - 450 MHz 35 W
Tw o-w ayradio
(2G/3G/4G) 10 W The
following can be used in theve hicle without
re strictions:
R two-w ayradios with a maximum transmission
output of up to100 mW
R RF transmitters with transmitter frequencies
in the 380 - 410 MHz frequency band and a
maximum transmission output of up to2 W
(trunked radio sy stem/T etra)
R mobile phones (2G/3G/4G)
There are no restrictions when positioning the
aerial on the outside of theve hicle for some
wa vebands.
R Terrestrial Trunked Radio (TETRA)
R 70 cm frequency band
R 2G/3G/4G Ra
dio ope rating permits forve hicle comp o‐
nents
Manufacturer information about wireless vehicle
components can be found using theke y phrase
"Radio operating permits" in the Digital Owner's Manual in
theve hicle, on the internet and in the
app. Ve
hicle identification plate, VIN and engine
number overview
Ve hicle identification plate Te
ch nical da ta349
Display messages
Possible causes/consequences and M
MSolutions
Á Key not detected (white dis‐
play message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot forst arting with theke y (/ page154).
Á
Key not detected (red dis‐
pl ay messa ge) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Stop theve hicle immediately in accordance with the traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page154).
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot forst arting the engine with theke y (/ page154). 37 0
Displaymessa ges and warning/indicator lamps
Ty
re pressure moni tor Display messages
Possible causes/consequences and M
MSolutions
Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source As a result, no signals from the tyre pressure sensors are
being recei ved. The tyre pressure monitoring sy stem is temp orarily una vailable.
The tyre pressure monitoring sy stem will restart automatically as soon as the cause has been rectified. #
Drive on.
Tyre press. monitor inoper-
ative *T
he tyre pressure monitoring sy stem is malfunctioning. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
The tyre pressure monitoring sy stem cann otissue a warning if there is pressure loss in one or more of the
tyres.
Ty res with insuf ficient tyre pressure may impair the driving characteristics as well as steering and braking. #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. Tyre press. monitor inoper-
ative No wheel sensors
*T
he wheels fitted do not ha vesuitable tyre pressure sensors. The tyre pressure monitoring sy stem is deactivated. #
Fit wheels with suitable tyre pressure sensors.
h
Wheel sensor(s) missing *T
here is no signal from the tyre pressure sensor of one or more wheels. Nopressure value is displa yedfo rthe
af fected tyre. #
Have thefa ulty tyre pressure sensor replaced at a qualified specialist workshop. Display messages and
warning/indicator lamps 409
Engine electronics
Notes ................................................... 347
Engine number ........................................3 49
Engine oil ................................................. 299
Ad ditives .............................................3 57
Capacity .............................................. 358
Checking the oil le vel using the on-
board computer ................................... 299
MB-Fr eigabe or MB-Appr oval .............. .358
Quality ................................................. 358
To pping up ...........................................2 99
EQ Boost Operating saf ety .................................... 22
Quali fied specialist workshop ................29
ERA-GLONASS test mode
St arting/ending .................................. 286
ESC (Elect ronic Stability Control)
see ESP ®
(Electronic Stability Prog ram)
ESP ®
Crosswind Assist ................................. 187
Tr ailer stabilisation .............................. 187
ESP ®
(Electronic Stability Prog ram) ...... 185
Ac tivating/deactivating ...................... .187 Fu
nction/no tes ................................... 185
EU general operating permit number ....349
Exterior lighting see Lights
Exterior lighting (care) ............................ 305 F
Fa tigue de tection
see ATTENTION ASSIST
Fa ult message
see Displ aymessa ge
Fi re extinguisher ...................................... 310
Firs t-aid kit (soft sided) ...........................310
Flacon Inserting/removing ............................ .144
Flat towing
see Tow- bar sy stem
Flat tyre ....................................................3 11
MOExtended tyres ................................ 311
No tes ................................................... 311
TIREFIT kit ............................................ 313
Wheel change ...................................... 341 Floor mats
................................................ 121
Fo g light (extended range) ......................1 27
Fo il co vering
Ra dar and ultrasonic sensors .............. 183
Fr ag rance
see Frag rance sy stem
Fr ag rance sy stem .................................... 14 4
Inserting/removing theflacon ............ .144
Setting ................................................. 14 4
Fr ee software ............................................ 34
Fr equencies
Mobile phone ...................................... 348
Tw o-w ayradio ...................................... 348
Fr ont airbag (driver, front passenger) .....42
Fr ont passenger seat
see Seat
Fu el .......................................................... .354
Ad ditives .............................................3 54
Diesel .................................................. 354
E10 ...................................................... 353
Fu elreser ve ........................................ 355
Low outside temp eratures ...................3 54
Pe trol ................................................... 353 Index
447
Home screen (media display)
Overview ............................................. 253
Hooking the luggage net .........................117 I
i-Size child seat securing sy stem
Fitting .................................................... 59
i‑Size child seat securing sy stem
Seats suitable for attaching ................... 59
Identification plate Engine ................................................. 349
Vehicle ................................................ 349
Ignition Switching on (S tart/S top button) ........ 15 2
Ignition key
see Key
Immobiliser ................................................ 91
Implied warranty
Ve hicle ................................................... 31
In-Car Of fice ............................................ .280
Fe atures .............................................. 280 Indicator lamps
see Warning/indicator lamps
Individual drive prog ram
Con figuring .......................................... 16 5
Selecting ............................................. 16 5
Inspection see AS SYST PLUS
Instrument clus ter
Fu nction/no tes ........................... 244,24 5
Instrument display Function/no tes ................................... 24 5
Instrument clus ter ................................. 10
Wa rning/indicator lamps .................... .419
Instrument display and on-board
compu ter
Fu nction/no tes ................................... 24 4
Intelligent Light Sy stem
Ac tive headla mps ................................ 12 6
Ad aptive Highbeam Assist .................. .128
Ad aptive Highbeam Assist Plus .......... .129
Ad versewe ather light .......................... 12 8
City lighting ........................................ .128
Cornering light ..................................... 12 6
Fo g light (extended range) ................... 127Mo
torw ay mode ................................... 127
Overview ............................................. 12 6
Switching on/off ................................. 12 8
Interior lighting ........................................ 13 2
Ambient lighting .................................. 13 2
Re ading light ........................................ 13 2
Setting ................................................. 13 2
Switch-off del aytime ........................... 13 3
Interior pr otection
Fu nction ................................................ 93
Priming/deactivating ............................. 93
In tern etradio
see TuneIn
Ionisation Activating/deactivating (MBUX mul‐
timedia sy stem) ................................... 14 4
iPhone ®
see Smartphone integ ration
ISOFIX child seat securing sy stem
Fitting .................................................... 59
Seats suitable for attaching ................... 58 Index
449
Ne
utral
Engaging .............................................. 167
Note s........................................................ 157
Optimised acceleration ........................ 157O
Occupant saf ety
see Airbag
see Automatic front passenger front
airbag shutoff
see Pets in theve hicle
see PRE-SAFE ®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restra int sy stem
see Seat belt
Oil see Engine oil
On-board computer ................................. 24 6
Displ aying the service due date ........... 295
Head-up display menu .........................2 49
Multifunction display ........................... 24 8
Operating ............................................ 24 6Overview of menus ..............................
24 6
On-board diagnostics inter face
see Diagno stics connection
On-boa rdelectronics
Engine electronics .............................. .347
No tes ................................................... 347
Tw o-w ayradios .................................... 347
Online services Data storage .......................................... 33
Online services see In-Car Of fice
Open-source so ftwa re .............................. 34
Opening the bo otlid using your foot
HANDS-FREE ACCESS .......................... .81
Operating fluids
Ad Blue ®
............................................... 356
Ad ditives (fuel) .................................... 354
Brake fluid .......................................... .359
Coolant (engine) .................................. 359
Engine oil ............................................. 357
Fu el (diesel) ......................................... 354
Fu el (petrol) ......................................... 353
No tes ................................................... 351 Wi
ndsc reen washer fluid .................... .360
Operating saf ety
48 V on-boa rdelectrical sy stem ............ 22
Declaration of confo rmity (elect ro‐
magnetic compatibility) ......................... 24
Declaration of conformity (ja ck) ............ 27
Declaration of conformity (TIREFIT kit) .. 28
Declaration of conformity (wireless
ve hicle components) ............................. 24
EQ Boo st............................................... 22
Information ............................................ 22
Ope rating sy stem
see On-board computer
Optimised acceleration ...........................157
Ac tivating ............................................ .157
Outside mir rors ............................... 137, 13 8
Anti-dazzle mode (automatic) .............. 13 8
Au tomatic mir rorfo lding function ........ 13 9
Fo lding in/out .................................... .137
Operating the memory function ........... 11 0
Pa rking position .................................. .138
Setting ................................................. 137
Overhead control panel Overview ................................................ 12454
Index
Tr
im element (Care) .................................307
Tu neIn .......................................................2 93
Calling up ............................................ 293
Tu rn signal indicator ...............................1 25
Ac tivating/deactivating ...................... .125
TV Information .......................................... 290
Tw o-w ayradios
Fr equencies ......................................... 348
No tes on ins tallation ............................ 347
Tr ansmission output (maximum) ........ .348
Ty re inflation compressor
see TIREFIT kit
Ty re pressure ........................................... 333
Checking (ty repressure monitoring
sy stem) ............................................... 334
No tes .................................................. 332
Re starting the tyre pressure loss
wa rning sy stem ................................... 336
Re starting the tyre pressure monitor‐
ing sy stem ...........................................3 35
TIREFIT kit ............................................ 313
Ty re pressure loss warning sy stem
(function) ............................................. 335 Ty
re pressure monitoring sy stem
(function) ............................................. 334
Ty re pressure table .............................. 333
Ty re pressure loss warning sy stem
Fu nction .............................................. 335
Re starting ............................................ 336
Ty re pressure moni tor
Fu nction .............................................. 334
Ty re pressure moni toring sy stem
Checking the tyre pressure ................. 334
Checking the tyre temp erature ............ 334
Re starting ............................................ 335
Ty re pressure table ................................. 333
Ty re temp erature
Checking (tyre pressure monitoring
sy stem) ............................................... 334
Ty re pressure monitoring sy stem
(function) ............................................. 334
Ty re tread ................................................. 331
Ty re-change tool kit
Overview ............................................ .340
Ty res
Changing hub caps .............................. 341 Checking ............................................
.331
Checking the tyre pressure (tyre
pressure monitoring sy stem) ............... 334
Fitting .................................................. 344
Flat tyre ................................................ 311
Inter changing ...................................... 339
MOExtended tyres ................................ 311
No ise .................................................. .331
No tes on fitting ................................... 336
Re moving ............................................ 344
Re placing .....................................3 36, 341
Re starting the tyre pressure loss
wa rning sy stem ................................... 336
Re starting the tyre pressure monitor‐
ing sy stem ...........................................3 35
Selection ............................................. 336
Snow chains ........................................ 331
St oring ................................................ 340
TIREFIT kit ............................................ 313
Ty re pressure (N otes) .......................... 332
Ty re pressure loss warning sy stem
(function) ............................................. 335
Ty re pressure monitoring sy stem
(function) ............................................. 334
Ty re pressure table .............................. 333
Un usual handling characteristics ........ .331 462
Index